For professionals in the chemical industry, a deep understanding of a compound's properties is fundamental to its effective utilization. 4-Methyl-2-nitroaniline, identified by CAS number 89-62-3, is a compound whose specific chemical characteristics make it a vital intermediate in the synthesis of dyes and pigments. NINGBO INNO PHARMCHEM CO.,LTD., as a dedicated manufacturer and supplier of fine chemicals, provides insights into the essential properties of this versatile molecule.

Chemically, 4-Methyl-2-nitroaniline is an aromatic amine, belonging to the class of nitroanilines. Its molecular formula is C7H8N2O2, with a molecular weight of approximately 152.15 g/mol. The structure features a benzene ring substituted with a methyl group (-CH3) at the para position and a nitro group (-NO2) at the ortho position relative to the amine (-NH2) group. This specific arrangement of functional groups dictates its reactivity and suitability for various chemical transformations.

A key characteristic is its ability to undergo diazotization. The primary amine group can react with nitrous acid (generated in situ, typically from sodium nitrite and a mineral acid) at low temperatures to form a diazonium salt. This diazonium salt is highly reactive and serves as the electrophilic component in azo coupling reactions. When this diazonium salt of 4-Methyl-2-nitroaniline is coupled with appropriate coupling components, such as naphthols or acetoacetanilides, it forms azo compounds. These azo compounds are the basis of a vast array of colors, particularly in the red spectrum, making 4-Methyl-2-nitroaniline a crucial intermediate for azo dyes and pigments.

Physically, 4-Methyl-2-nitroaniline typically presents as an orange to orange-brown crystalline powder. Its melting point is around 115-116 °C, indicating its solid state under standard conditions. While it has moderate solubility in water, it exhibits better solubility in organic solvents like ethanol and acetone. These physical properties are important for handling, storage, and processing in manufacturing environments. For businesses looking to purchase 4-methyl-2-nitroaniline, understanding these physical traits aids in optimizing their operational workflows.

The reactivity of the nitro group can also be exploited in further chemical synthesis, though its primary industrial role is as a precursor for colorants. Safety considerations are also vital; as with many aromatic amines and nitro compounds, appropriate handling procedures, including personal protective equipment (PPE), are necessary. When considering the purchase of 4-methyl-2-nitroaniline, consulting the Material Safety Data Sheet (MSDS) and working with a reputable manufacturer that provides comprehensive product information is highly recommended.

In summary, the chemical and physical properties of 4-Methyl-2-nitroaniline (CAS 89-62-3)—particularly its capacity for diazotization and subsequent azo coupling—make it an indispensable intermediate for the colorant industry. NINGBO INNO PHARMCHEM CO.,LTD. is committed to supplying this compound with the high purity and consistent quality required for demanding applications. We invite you to contact us for inquiries about price and availability, ensuring your access to this critical fine chemical.